From 6 February 2014, all aircraft new to the Australian register on or after this date that operate instrument flight rules (IFR) must be equipped with Technical Standard Order (TSO) C145, C146 or C196 global navigation satellite system (GNSS) unless they are equipped with a multi-sensor navigation system that includes GNSS – inertial integration acceptable to CASA. Details of the equipment changes and the applicable dates are provided in the links below.